volume | PIER Journals

Abstract

In high-speed strip-mode Synthetic Aperture Radar (SAR), the motion between the radar and moving targets during the pulse duration must be considered; however, the existing SAR raw data simulator is unable to handle the case of the moving targets for high-speed SAR exactly. As for the issue, an accurate Point Target Reference Spectrum (PTRS) of the moving targets for high-speed SAR is first derived in the paper, which considers the motion. Further, an accurate and efficient extended scene generator for high-speed SAR included static and moving targets is proposed according to the spectrum. Finally, point targets and extended scene are performed to validate the proposed approach, and its computational complexity is analyzed.

1. Curlander, J. and R. Mc Donough, Synthetic Aperture Radar Systems and Signal Processing, New York, 1991.

2. De Mori, V. F., "A time-domain raw signal simulator for interferometric SAR," IEEE Trans. Geosci. Remote Sens., Vol. 42, 1811-1817, 2004.
doi:10.1109/TGRS.2004.832242 Google Scholar

3. Franceschetti, G., M. Migliaccio, D. Riccio, and G. Schirinzi, "SARAS: A synthetic aperture radar (SAR) raw signal simulator," IEEE Trans. Geosci. Remote Sens., Vol. 30, 110-123, 1992.
doi:10.1109/36.124221 Google Scholar

4. Yang, L., W. D. Yu, S. C. Zheng, and L. Zhang, "Efficient bistatic SAR raw signal simulator of extended scenes," International Journal of Antenna and Propagation, Vol. 3, 1-9, 2014. Google Scholar

5. Zhang, F., X. J. Yao, H. Y. Tang, Q. Yin, Y. X. Hu, and B. Lei, "Multiple mode SAR raw data simulation and parallel acceleration for Gaofen-3 mission," IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 11, 2115-2126, 2018.
doi:10.1109/JSTARS.2017.2787728 Google Scholar

6. Martino, G. D., A. Iodice, D. Poreh, and D. Riccio, "Pol-SARAS: A fully polarimetric SAR raw signal simulator for extended soil surfaces," IEEE Trans. Geosci. Remote Sens., Vol. 56, 2233-2247, 2018.
doi:10.1109/TGRS.2017.2777606 Google Scholar

7. Franceschetti, G., A. Iodice, S. Perna, and D. Riccio, "SAR sensor trajectory deviations: Fourier domain formulation and extended scene simulation of raw signal," IEEE Trans. Geosci. Remote Sens., Vol. 44, 2323-2334, 2006.
doi:10.1109/TGRS.2006.873206 Google Scholar

8. Khwaja, A. S., L. Ferro-Famil, and E. Pottier, "Efficient stripmap SAR raw data generation taking into account sensor trajectory deviations," IEEE Geosci. Remote Sens. Lett., Vol. 8, 794-798, 2011.
doi:10.1109/LGRS.2011.2111411 Google Scholar

9. Dogan, O. and M. Kartal, "Efficient strip-mode SAR raw-data simulation of fixed and moving targets," IEEE Geosci. Remote Sens. Lett., Vol. 8, 884-888, 2011.
doi:10.1109/LGRS.2011.2132791 Google Scholar

10. Yang, L., W. Yu, Y.-H. Luo, and S. Zheng, "Efficient strip-mode SAR raw data simulator of extended scenes included moving targets," Progress In Electromagnetics Research B, Vol. 53, 187-203, 2013.
doi:10.2528/PIERB13050205 Google Scholar

11. Yang, L., W. D. Yu, R. Wang, and Y. H. Luo, "Efficient strip-mode SAR raw signal simulation of mixed targets based on accurate 2-D spectrum," IEEE Radar Conference, Canada, 2013. Google Scholar

12. Breit, H., T. Fritz, U. Balss, M. Lachaise, A. Niedermeier, and M. Vonavka, "Terra SAR-X SAR processing and products," IEEE Trans. Geosci. Remote Sens., Vol. 48, 727-740, 2010.
doi:10.1109/TGRS.2009.2035497 Google Scholar

13. Liu, Y., M. D. Xing, G. C. Sun, X. L. Lv, Z. Bao, W. Hong, and Y. R. Wu, "Echo model analyses and imaging algorithm for high-resolution SAR on high-speed platform," IEEE Trans. Geosci. Remote Sens., Vol. 50, 933-950, 2012.
doi:10.1109/TGRS.2011.2162243 Google Scholar

Dr. Liang Yang